Answer to Question #107142 in Statistics and Probability for RINA

Question

The records of an Italian shoe manufacturer show that 20% of the shoes are
defective. Assume that selection of shoes follow a Bernoulli trial.
a. If a manufacturer inspects 15 shoes randomly, what is the probability that at
most two shoes are defective?
b. If a manufacturer wants to find 6 non-defective shoes, what is the probability
that 12 shoes have to be inspected?
c. Find the expected number of inspected shoes to find 6 non-defective shoes.

Answer 1

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